What to do if I'm a teenager and I'm 70 kg! Can you suggest diet plan suitable for my age?

Weight loss. Consider education about nutrition & health. Ensure that weight loss goals are healthy. Have you discussed w your doctor? Consider working with a nutritionist. Eat healthfully. Try to eat at least 5 servings of vegetables & 4 of fruit per day. Increase nutritional fiber. Avoid refined sugar & junk carbohydrates. Avoid alcohol, sweetened juices, soda & caffeinated beverages. Aim for 7.5 to 8 hrs.